Re: unixODBC fails to open psqlodbcw.so library on Mac OS X 10.4

On Sun, May 27, 2012 at 11:06 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> julia.jacobson@arcor.de writes:
>> Moreover, all required dependencies of the library are present on the machine:
>> MacMini:~ user$ otool -L /Library/PostgreSQL/psqlODBC/lib/psqlodbcw.so
>> /Library/PostgreSQL/psqlODBC/lib/psqlodbcw.so:
>>         /usr/lib/libltdl.3.dylib (compatibility version 5.0.0, current version 5.4.0)
>>         /usr/lib/libssl.0.9.7.dylib (compatibility version 0.9.7, current version 0.9.7)
>>         @loader_path/libpq.5.dylib (compatibility version 5.0.0, current version 5.4.0)
>>         /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4)
>>         /usr/lib/libiodbc.2.dylib (compatibility version 4.0.0, current version 4.17.0)
>>         /usr/lib/libiodbcinst.2.dylib (compatibility version 4.0.0, current version 4.17.0)
>>         /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)
>
> Hm, what's that "@loader_path" business?  I don't know much about
> dynamic linking on OS X, but if that works at all, it must be some sort
> of environment reference, which would be pretty fragile.  I'd suggest
> asking EnterpriseDB whether that's meant to be like that or is a
> packaging bug.

It is meant to be like that - it expands to the directory containing
the psqlodbcw.so file (@loader_path is useful when creating
relocatable frameworks). We ship the required libpq in the psqlODBC
installer, so it should always be available in that path.

--
Dave Page
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Twitter: @pgsnake

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